736 results about "Demulsifier" patented technology

Disclosed in the present invention are an emulsifier type cold-mixed and cold-laid asphalt mixture and a preparation method therefor. The emulsifier type cold-mixed and cold-laid asphalt mixture comprises the following components in parts by mass: 400-600 parts of coarse aggregate, 400-600 parts of fine aggregate, 90-160 parts of modified emulsified asphalt, 10-30 parts of a mineral filler, and 2-8 parts of a water reaction type resin demulsifier, wherein the molecular weight of the water reaction type resin demulsifier is 1 million-10 million. According to the emulsifier type cold-mixed and cold-laid asphalt mixture provided by the present scheme, without using cement, the forming speed of the early strength of the asphalt mixture is increased while ensuring the pavement performance of the asphalt mixture, and the technical problem in the prior art of the reclamation difficulty in a pavement laid by an asphalt mixture in which cement is added is solved, thereby overcoming defects in the prior art.

The invention belongs to the technical field of sewage treatment, and particularly relates to a demulsifier for eliminating an oil-water interface emulsion layer in oilfield produced liquid treatment and a preparation method of the demulsifier. The preparation method comprises the following steps: adding acrylamide, 1-allyl-3-methylimidazolium bis (trifluoromethanesulfonyl) imine salt, allyl tributyl phosphonium chloride and deionized water into a first reactor, and heating and dissolving the acrylamide, the 1-allyl-3-methylimidazolium bis (trifluoromethanesulfonyl) imine salt, the allyl tributyl phosphonium chloride and the deionized water; adding allyl (diisopropylamino) dimethylsilane, butyl acrylate, deionized water, octylphenol polyoxyethylene ether-10, lauryl sodium sulfate and monopotassium phosphate into the second reactor, and stirring to obtain an emulsion; adding an initiator and sodium hydrogen sulfite into a second reactor, carrying out heating and heat preservation reaction, pouring the mixed solution in the first reactor, and continuously carrying out reaction, heating and heat preservation to obtain a viscous liquid; and drying and granulating the viscous liquid to obtain the demulsifier. The demulsifier provided by the invention has the characteristics of simple synthesis process and high demulsification rate.

The invention relates to the technical field of petrochemical engineering, and particularly discloses a preparation method of a high-sulfur and high-acid crude oil demulsifier, which comprises the following steps: uniformly mixing 40-60 parts by mass of modified polyether, 25-30 parts by mass of zwitterionic surfactant and 10-12 parts by mass of solvent, heating to 50-70 DEG C, reacting for 1-2 hours, and cooling to room temperature to obtain the high-sulfur and high-acid crude oil demulsifier. Adding 3-8 parts by mass of activated aluminum oxide, 8-16 parts by mass of an antacid and 2-4 parts by mass of a corrosion inhibitor, uniformly mixing, adding 0.5-1 part by mass of a defoaming agent, uniformly mixing, cooling, and standing for layering to obtain a demulsifier; the antacid comprises ethanolamine and zinc oxide. The demulsifier prepared by the invention not only has excellent performance in the aspects of dehydration and promotion of oil-water separation, but also can improve the quality of crude oil and reduce the acid value and the sulfur content to a certain extent.

The invention belongs to the field of hydraulic oil, and particularly discloses a flame-retardant hydraulic oil composition and a preparation method thereof. The hydraulic oil composition is prepared from the following components in parts by weight: 67 to 97 parts of main base oil, 5 to 30 parts of auxiliary base oil, 1.2 to 1.5 parts of a lubricating agent, 1.5 to 2.0 parts of an antioxidant, 0.03 to 0.06 part of a corrosion inhibitor, 0.01 to 0.08 part of a demulsifying agent and 0.01 to 0.08 part of a de-foaming agent, the auxiliary base oil is one of trimethylolpropane trinonanoate, trimethylolpropane caprylic capric acid ester and trimethylolpropane caprylic laurate; the components are sequentially mixed to obtain the flame-retardant hydraulic oil. According to the invention, a specific main-auxiliary base oil system is compounded with other additives, so that the final oil product has excellent anti-oxidation characteristic, the use temperature upper limit is improved, the service life of the oil product is further prolonged, and the stability and low-temperature pumping capacity of the oil product in the use process are improved.

In one aspect, a demulsification additive includes a separation-promoting agent and a solvent. In another aspect, a demulsification additive includes a separation-promoting agent and a demulsifier or demulsifier intermediate. In another aspect, a method for separating crude oil from water includes introducing the water to the cmde oil, providing a demulsification additive that includes a separation-promoting agent, and contacting the water and the crude oil with the demulsification additive. In one embodiment, the separation-promoting agent is selected from the group consisting of dextran sulfate sodium salt, polyvinyl pyrrolidone functionalized with sodium salt of chloroacetic acid, poly(ethyleneglycol)-b(propyleneglycol)-b(ethyleneglycol) block copolymer, polyvinyl pyrrolidone functionalized with propyl sulfonate, sulfonated polyether ether ketone polymer, polyvinyl pyrrolidone functionalized with bromohexane, polyvinyl pyrrolidone functionalized with iodododecane, and combinations thereof.

The invention discloses a low-temperature polyether demulsifier for oil and gas gathering and transportation and a preparation method thereof, and relates to the technical field of petrochemical engineering, and the preparation method is characterized by comprising the following steps: compounding cardanol, pentaethylenehexamine and bisphenol F according to a specific molar ratio to obtain an initiator, and carrying out formaldehyde condensation to prepare a composite initiator; epoxypropane and ethylene oxide are grafted through staged block copolymerization to form a polyether skeleton; introducing a fluorine-containing epoxy monomer to carry out terminal fluorination modification; finally, adipic acid and epichlorohydrin are subjected to chain extension crosslinking, and the demulsifier with the molecular weight being 8000-12000 Da, the fluorine content being 5.5-6.5 wt% and the PDI being smaller than or equal to 1.3 is prepared. The low-temperature demulsifying agent has the effects of realizing efficient demulsification at low temperature, improving the demulsifying efficiency and reducing the dosage through coordination of the composite initiator, super-hydrophobic permeation of the fluorinated block and accurate regulation and control of the molecular weight, solving the problems of low-temperature failure and easiness in emulsification of a traditional demulsifying agent, and meeting the requirements of low-temperature working conditions of oil and gas gathering and transportation.

The present invention discloses an oil-water separation device for treating oily wastewater, which relates to the technical field of wastewater treatment devices, and comprises a reinforced support leg, a gravity separation mechanism is arranged on the top of the reinforced support leg, a freezing separation mechanism is arranged on the outer wall of the reinforced support leg, the gravity separation mechanism comprises an oil-water separation unit and a demulsification heating unit, the freezing separation mechanism comprises a drive transposition unit and a temperature adjustment unit, and the demulsification heating unit comprises a movable round seat. The present invention, through the design of the liquid inlet pipe, the user can inject the external demulsifier into the inner cavity of the hollow square tube, through the design of the rotating joint, the movable round seat and the manual driving handle, the user can manually rotate the hollow square tube as a whole, and the demulsifier will then be uniformly output from the one-way injection pipe to the inside of the wastewater, destroying the emulsified oil body inside the wastewater, so that the emulsified oil body floats up, thereby ensuring the adequacy of subsequent oil-water separation.

The latex waste liquid recovery device comprises a recovery tank and a demulsification stirring structure, the top of the recovery tank is provided with a liquid inlet box, the bottom of the recovery tank is provided with a blow-off pipe, the side wall of the recovery tank is provided with a demulsification liquid adding port, the inner side wall of the recovery tank is provided with a filtering recovery tank, the filtering recovery tank is of an annular structure, and the demulsification stirring structure is arranged in the filtering recovery tank. A water passing hole is formed in the bottom of the filtering and recycling tank, a filtering net is arranged in the recycling tank and is of a conical structure, the bottom of the filtering net is arranged at the top of the filtering and recycling tank, and the demulsification stirring structure is arranged in the recycling tank. The utility model relates to the technical field of latex production, and particularly provides a latex waste liquid recovery device which can fully and efficiently mix waste liquid with a demulsifier and can clean the inner wall of a tank body.

The invention belongs to the technical field of electroplating wastewater treatment, and particularly relates to a treatment process of emulsified oil wastewater for oil removal before plating of electronic products. A chemical demulsification and membrane separation technology is adopted to carry out demulsification separation on the emulsified oil wastewater, demulsifier molecules adsorb oil drops, a separation interface is promoted to be broken, and finally flocculation is carried out to form clusters, so that the demulsification effect is achieved, a clarified water sample can be obtained, and the ion content is reduced; the demulsified and separated wastewater is flocculated by adopting PAC + PAM, and the sedimentation of organic matters and metal ions in the wastewater is promoted by virtue of the properties of charge neutralization and colloid adsorption, so that the flocculation effect is achieved, a water sample is clear and transparent, the metal ions and COD (Chemical Oxygen Demand) values are reduced after flocculation separation, COD and heavy metal ions are removed, and the aim of treating the emulsified oil wastewater is fulfilled.

According to the automatic continuous treatment equipment for the oily sludge, the sludge is automatically pushed to a conveying cylinder through a pretreatment cylinder, the blocky sludge is crushed by the conveying cylinder and is uniformly conveyed to a treatment box, and magnetic pressing plates are sequentially attracted by electromagnetic blocks to press the sludge downwards, so that dynamic pressure is applied to the sludge, and primary dehydration is realized; meanwhile, demulsification balls are contained in dewatering balls released by the feeding box and penetrate into the sludge under the action of an electromagnetic block, demulsifying agents are released, the oil-water interfacial tension is reduced, an electric heating element is arranged in a spiral transmission rod, water evaporation is promoted through microwave heating, the dewatering balls are matched, and the oily sludge can be effectively dewatered, and magnetic balls move directionally under the action of an electromagnetic field; and the oil-water recycling tank realizes fine separation of oil and water through a filter screen membrane, and a deodorization box of the sludge collection tank synchronously triggers gas circulation for deodorization by utilizing linkage of an elastic air bag and an auxiliary air bag when the dewatering balls are recycled.

The invention belongs to the technical field of emulsified oil recovery, and particularly relates to a method for recovering emulsified oil generated by preparing an alumina carrier through an oil column forming process. The emulsified oil recovery method comprises the following steps: adding ammonia water into emulsified oil, stirring, preserving heat, centrifuging, collecting upper-layer floating oil A, and removing bottom-layer water and impurities to obtain a first-stage emulsion; adding ammonia water into the primary emulsion, heating by using a heat source until the temperature is higher than 100 DEG C, then stopping heating to obtain a demulsified primary emulsion system, carrying out centrifugal treatment, collecting upper-layer floating oil B, removing bottom-layer water and impurities, and remaining a secondary emulsion; combining the collected upper-layer floating oil A and the collected upper-layer floating oil B, distilling and removing water to obtain an oil body A; carrying out vacuum distillation on the secondary emulsion to remove water, and centrifuging to remove impurities at the bottom layer to obtain an oil body B; and finally, combining the oil body A and the oil body B to obtain recovered oil. The method does not need to add organic auxiliaries such as a demulsifier, the recovery process is simple and easy to control, the treatment temperature is low, the recovered oil quality is good, and the recovery rate is high.

The invention belongs to the technical field of oilfield auxiliaries, and particularly relates to an oil-soluble demulsifier for a heavy oil field and a preparation method of the oil-soluble demulsifier. The oil-soluble demulsifier for the heavy oil field, provided by the invention, is prepared from a block polymer emulsion, nonylphenol polyoxyethylene ether, modified nanoparticles and a cross-linking agent. According to the invention, methoxystyrene, dodecyl vinyl ether, N, N-dimethylaminopropyl acrylamide and 2-acrylamide-2-methylpropanesulfonic acid are adopted to prepare a quaternary block comb-shaped polymer, the quaternary block comb-shaped polymer and nonylphenol polyoxyethylene ether are subjected to molecular-level cross-linking through a cross-linking agent, nano modified particles are added, and the quaternary block comb-shaped polymer is prepared. The prepared demulsifier can be rapidly adsorbed on an oil-water interface and respectively adsorb an oil phase and a water phase, so that the tension of the oil-water interface is reduced, rapid separation of the oil phase and the water phase is realized, and the demulsification performance is improved.

In one embodiment, a method may include receiving, by a demulsifier analysis framework, tensiometer data for an oil and water field sample including an added candidate demulsifier, where the tensiometer data includes rheology data regarding frequency, and wherein the demulsifier analysis framework includes a model derived based at least in part on bottle test data of the demulsifier in the oil and aqueous emulsion; using the tensiometer data as an input to a model of the demulsifier analysis framework to determine performance characteristics of candidate demulsifiers relative to the oil and water field samples without bottle testing of the oil and water field samples; and outputting, by the demulsifier analysis framework, performance characteristics of the candidate demulsifiers relative to the emulsion breaking the oil and water field samples.

The invention belongs to the technical field of oil exploitation, and relates to a comb-shaped demulsifier for demulsifying high-solid-phase crude oil and a preparation method of the comb-shaped demulsifier. The preparation method comprises the following steps: adding 2-methallyl alcohol and a catalyst into a high-pressure reaction kettle, adding epoxypropane, heating, carrying out a thermal insulation reaction, cooling, introducing ethylene oxide, heating, carrying out a thermal insulation reaction, cooling, and adjusting the pH value to 7-8 to obtain an intermediate; transferring the intermediate into a reaction kettle, sequentially adding (3-acrylamidopropyl) trimethyl ammonium chloride, benzyl methacrylate, butyl acrylate, nonylphenol polyoxyethylene ether, buffer salt and deionized water, stirring at a high speed to form a uniform emulsion, and adjusting the pH value to 7-8; dropwise adding an initiator, heating, carrying out heat preservation reaction, continuously heating, carrying out heat preservation reaction, and cooling to obtain a viscous liquid; and granulating the viscous liquid to obtain a final product. The demulsifying agent has the characteristics of wide raw material source, simple synthesis process, no by-product and good demulsifying effect.

The invention discloses a preparation method of a demulsifier for oil-water separation of full fermentation broth, and relates to the technical field of demulsifier preparation.The preparation method comprises the steps of magnetic nanoparticle preparation, nanoparticle coating and demulsifier preparation.The preparation method has the advantages that salt is dissolved in a three-neck flask, nitrogen is introduced to discharge oxygen in the solution, and the demulsifier is obtained; according to the preparation method, the magnetic nanoparticles are added into the mixture A, so that the generated nanoparticles can be prevented from being oxidized, the mixture A is added in the process of adding the potassium nitrate and the 2-methylimidazole, and the polydopamine in the mixture A has good adhesion and biocompatibility, so that a'bridge '-like connection effect can be achieved between the magnetic nanoparticles and a subsequently generated nanoparticle coated sample; and polyvinylpyrrolidone can be used as a dispersant to prevent agglomeration of generated nano particle coated sample particles, and polar groups on molecular chains of polyvinylpyrrolidone can generate certain interaction with raw materials in a reaction system to optimize the growth process of the nano particle coated sample.

The invention relates to the technical field of demulsifiers, and particularly discloses a demulsifier for treating waste emulsion and a demulsification process of the demulsifier. The invention discloses a demulsifying agent for treating waste emulsion. The demulsifying agent is prepared from the following raw material components in parts by weight: 1 to 1.2 parts of calcium chloride, 1 to 1.1 parts of polyaluminum chloride, 0.7 to 0.85 part of anionic polyacrylamide, 0.3 to 0.5 part of ferrous sulfate, 1 to 1.2 parts of a surfactant, 0.4 to 0.5 part of an auxiliary demulsifying agent, 0.1 to 0.2 part of a synergist and 0.1 to 0.2 part of a stabilizer. The demulsifier disclosed by the invention has a relatively good demulsification effect, so that the treatment effect on the waste emulsion is improved.

The invention discloses a macromolecular demulsifier as well as a preparation method and application thereof, and belongs to the technical field of oil exploitation. The polymer demulsifier has a structure as shown in a formula (I): # imgabs0 # formula (I); wherein R is selected from any one of NH2-(CH2CH2NH) m-CH2CH2, and m represents an integer from 1 to 4; n represents an integer from 25 to 600; a represents an integer from 60 to 200; and b represents an integer of 40-150. The macromolecular demulsifier has a good demulsification effect, improves the water phase cleanliness of demulsified dehydrated water, is suitable for various working conditions and environments, and solves the problem of difficulty in treatment of crude oil produced in oil fields in the prior art.

A computer implemented method that enables artificial intelligence based demulsifier control for AC or modulated AC / DC electrostatic coalescers is described. The method includes monitoring parameters associated with the GOSP facility and inputting the parameters to a trained machine learning model that outputs a minimum HPPT separation efficiency. The method includes determining a target HPPT separation efficiency based on the minimum HPPT separation efficiency. Additionally, the method includes adjusting a demulsifier dosage being injected into the HPPT apparatus to separate dry oil at the target HPPT separation efficiency.

The invention relates to the field of demulsifiers, in particular to an oil sludge demulsifier as well as a preparation method and application thereof. The oil sludge demulsifier comprises the following components in parts by mass: 20-35 parts of a surface active compound, 7-12 parts of a sodium alkyl sulfate cosolvent, 0.6-1.8 parts of a stabilizer and 48-55 parts of water, wherein the surface active compound comprises hyperbranched polyamidoamine and polyether amine modified magnetic nanoparticles. According to the oil sludge demulsifier, the problems that most of existing demulsifiers are small in dehydration amount, low in dehydration speed, poor in demulsification effect and low in treated oil content are solved, the demulsification performance of the oil sludge demulsifier is improved, the demulsification and dehydration efficiency is improved, and effective separation of oil sludge is achieved.

The invention provides an automatic chemical adding optimization control method, device and system and a readable storage medium, and the automatic chemical adding optimization control method comprises an online water content analyzer which is arranged in an outlet pipeline of a settling tank and is used for detecting the water content of incoming liquid of raw oil in real time; the automatic medicament filling unit is connected with the on-line water content analyzer, is positioned on a medicament adding pipeline of the settling tank and is used for filling medicaments; the data acquisition processing and data transmission unit is connected with the automatic medicament filling unit and is used for acquiring and transmitting interference data; and the control unit is respectively connected with the online water content analyzer, the automatic medicament filling unit and the data acquisition processing and data transmission unit, and the control unit is used for controlling the automatic medicament filling unit to fill medicaments through the fuzzy-proportional integral-Smith compensation controller according to the water content of the incoming liquid and the interference data. By means of the technical scheme, the demulsifier can be added more evenly and timely, the demulsifier is saved, and the crude oil dehydration effect is improved.

The invention discloses an efficient demulsifier for oily sludge and a preparation method thereof, and belongs to the technical field of sludge treatment. The preparation method comprises the following steps: dissolving octylphenol polyoxyethylene ether in water, stirring, transferring into a flask, heating to 60 DEG C, adding a peroxide aqueous solution, heating to 80 DEG C under the protection of nitrogen, adding methyl methacrylate, butyl acrylate and an auxiliary agent, keeping the temperature for 30-60 minutes, cooling to 60 DEG C, adding a hydroquinone aqueous solution, and keeping the temperature for 30 minutes to obtain a primary demulsifier; stirring the primary demulsifier, sodium silicate and water to prepare the efficient demulsifier for the oily sludge; the auxiliary agent containing the quaternary ammonium salt structure, methyl methacrylate and butyl acrylate are grafted and crosslinked under the chemical action so as to achieve the synergistic effect, the demulsification effect of the demulsifier is jointly improved, and by means of the combined action of the raw materials such as nonionic demulsifier-octylphenol polyoxyethylene ether, inorganic demulsifier-sodium silicate and hydroquinone, the demulsification effect of the demulsifier is improved. The demulsifier for the sludge has an efficient and stable demulsification effect.

The invention discloses a production device and a production method of a demulsifier, and relates to the technical field of demulsifier production. The production device of the demulsifier comprises a mixing kettle and a discharge valve arranged at the bottom of the mixing kettle, the top of the mixing kettle is rotationally connected with a stirring shaft, the stirring shaft penetrates into the mixing kettle, and the side wall of the stirring shaft is fixedly connected with a plurality of stirring blades. According to the production device and the production method of the demulsifier, caked solid raw materials can be crushed, meanwhile, the solid raw materials can be uniformly scattered on the surface of liquid, the mixing efficiency of the solid raw materials can be improved, and then the production efficiency of the demulsifier is guaranteed; when an alkaline solid raw material is fed, the reaction rate is convenient to control, the demulsifier is safer and more reliable, meanwhile, liquid near the reaction can be subjected to heat absorption cooling treatment, and the production effect of the demulsifier is ensured; the alkaline solid raw material can be preheated by utilizing the heat of the reaction, so that the reaction efficiency and effect can be improved.

The invention relates to the technical field of water treatment, and discloses a silicon powder conditioner and a preparation method thereof, the silicon powder conditioner comprises 20-40% of an inorganic coagulant, 5-15% of an organic polymer coagulant, 3-10% of a natural polymer coagulant aid, 10-25% of a demulsifier, 2-8% of a synthetic coagulant aid, and the balance of water. The demulsifying agent is compounded with various coagulants and coagulant aids, the demulsifying agent preferentially destroys an oil-water interfacial film, releases wrapped silicon powder and eliminates the'colloid protection 'effect of oil stains on the surface of the silicon powder, and the inorganic and organic coagulants rapidly perform electrical neutralization and adsorption bridging on exposed silicon powder particles to form floc which is good in settling performance and easy to filter. Meanwhile, the inorganic coagulant provides positive charges and efficiently neutralizes the microfine silicon powder with negative charges; cPAM with high molecular weight and PDADMAC with strong cations form long-chain bridging and patching effects, so that fine particles with the particle size of 1-5 microns are specially captured, and meanwhile, larger-particle silicon powder is improved to form floc which is easy to filter; the natural polymer further increases the volume and density of the floc, and prevents the floc from being broken under shearing.

The invention discloses a PVDF emulsion demulsification washing process, and relates to the technical field of polymer modified materials. The process aims at effectively removing the residual additive in the polyvinylidene fluoride emulsion so as to improve the purity and the performance of the final product. The process comprises the following steps: firstly, mixing PVDF emulsion with a pre-prepared nano demulsifier, and conveying the mixture to a condensation tower through a screw pump; in the condensation tower, demulsifying the mixed solution at a set temperature, and mechanically stirring by adopting a frame type stirrer to promote the emulsion to be demulsified and form snowflake-shaped particles; and then, the demulsified material is discharged from the bottom of the condensation tower and enters a washing tower, and the residual auxiliary agent is removed by using deionized water in a countercurrent washing manner. And finally, dehydrating and drying the washed material. The method has the advantages that the demulsification and washing processes are optimized, so that the production efficiency is improved, the resource consumption is reduced, and meanwhile, the high purity and excellent performance of the PVDF product are ensured.

The invention provides a preparation method of a novel magnetic response polyether demulsifier, which comprises the following specific steps: accurately weighing a certain amount of ferric chloride hexahydrate, mixed polyether demulsifier and multi-walled carbon nanotube, adding into a beaker together with a certain amount of solvent and assistant, carrying out ultrasonic treatment for a period of time to uniformly mix, adding into a reaction kettle with a polytetrafluoroethylene lining, and carrying out ultrasonic treatment for a period of time to obtain the magnetic response polyether demulsifier. Then introducing nitrogen for purging replacement, putting the reaction kettle into a drying oven, heating to a certain temperature, reacting for a certain time, cooling to room temperature after the reaction is completed, taking out, washing with an ethanol-water solution for multiple times, and drying to finally prepare the novel magnetic response polyether demulsifier. The prepared novel magnetic response polyether demulsifier has a good demulsification effect on thick oil emulsion with the water content higher than 90%, and under the action of an external magnetic field, rapid demulsification can be achieved, and recycling is easy to achieve.

The invention provides an integrated medical waste liquid advanced treatment device which comprises a treatment tank body, a separation cylinder and an interception filter plate at the lower end are arranged in the treatment tank body, the top of the separation cylinder is connected with a water inlet pipe, a rotating shaft driven by a first motor is arranged in the middle of the separation cylinder, and a spiral net plate is arranged on the shaft. An assembly for adding a demulsifier through a rotating shaft is arranged at the bottom of the tank, and an ultraviolet ozone co-processing assembly is arranged above the interception filter plate. A biological carrier column is contained in the reaction cylinder, a uniform water distributor is arranged at the bottom, and a top sealing cover is connected with a water outlet pipe through a connecting pipe. And the aeration water delivery assembly delivers the water treated by the ultraviolet ozone to the water distributor, so that the multi-stage advanced treatment of the waste liquid is realized. Through efficient multi-stage treatment technologies such as solid-liquid separation, demulsification, ultraviolet ozone oxidation and biodegradation, comprehensive purification of complex medical waste liquid is achieved, and the device has the advantages of being high in treatment efficiency, high in automation degree and remarkable in environmental protection effect.

The invention relates to the technical field of desalting demulsifiers, and discloses a special demulsifier for desalting heavy fuel oil for a gas turbine and a preparation method of the special demulsifier. Polyethylene glycol monomethyl ether and 4-((dimethylamino) methyl) benzoic acid are subjected to an esterification reaction to obtain tertiary amino polyethylene glycol monomethyl ether; and performing quaternization reaction with bromine atoms of the modified phenolic resin to obtain the special demulsifier for desalting the heavy fuel oil for the gas turbine. The demulsifying agent takes phenolic resin as a matrix, cationic groups and polyether chain segments are introduced into side chains of the phenolic resin, the demulsifying agent has very strong surface activity and shows very high desalination and dehydration performance, the dehydration rate reaches 87.2-93.5% in 18 hours, and after testing for 7 days, the salt content of heavy fuel oil after electric desalination is only 3.4-6.6 mg / L.

The invention provides a cyclodextrin ionic liquid demulsifier and a preparation method thereof. The demulsifier takes cyclodextrin as a core, and the surface of the demulsifier is grafted with tertiary amine with long-chain alkane through chloroacetyl chloride. The preparation method comprises the following steps: S1, modifying cyclodextrin with chloroacetyl chloride to obtain chloroacetyl chloride modified cyclodextrin; and S2, grafting chloroacetyl chloride modified cyclodextrin by using tertiary amine with long-chain alkane to obtain the cyclodextrin ionic liquid demulsifying agent. The demulsifier has the characteristics of low amount, high efficiency, easiness in degradation, salt resistance, acid resistance, alkali resistance and the like, and has a good demulsification effect on oil-containing wastewater and high oil removal rate.

The invention discloses a demulsifier for a heavy oil field and a preparation method of the demulsifier. The preparation method comprises the following steps: reacting an amine compound with benzyl glycidyl ether and allyl glycidyl ether to obtain a multi-aromatic-ring initiator, then polymerizing the multi-aromatic-ring initiator with epoxypropane and ethylene oxide to form a demulsifier polyether, and carrying out crosslinking modification to obtain a multi-aromatic-ring demulsification component A; synthesizing oleylamine polyether, and modifying to generate a dispersing aid component B which contains oil carboxyl and is of a comb-like structure; the demulsifier for the heavy oil field is prepared from the component A and the component B according to the ratio of 6: (1-2). The demulsifier for the heavy oil field prepared by the preparation method has the advantages of low dosing concentration, good dehydration effect, neat dehydration interface and clear dehydrated water.

The invention relates to a composite ceramic substrate with a core-shell structure and a preparation method thereof, and the preparation method comprises the following steps: carrying out ball milling, drying and high-temperature molten salt reaction on a metal oxide, TiO2, absolute ethyl alcohol and NaCl-KCl molten salt to synthesize titanate precursor powder; washing the titanate precursor powder, and adding deionized water to obtain a titanate aqueous solution; the preparation method comprises the following steps: uniformly mixing a surfactant, a cosurfactant, an oil phase and a titanate aqueous solution to obtain a first microemulsion; ammonia water is dripped into the first microemulsion, and a second microemulsion is obtained; adding isopropyl alcohol salt into the second microemulsion to obtain core-shell structure powder; demulsifying the core-shell structure powder with a demulsifier, drying and calcining, and ball-milling with zirconium balls, a solvent, a defoaming agent and a dispersing agent to obtain slurry; and degumming and sintering the slurry green body to prepare the ceramic substrate with the core-shell structure. The core-shell structure multiphase ceramic substrate prepared by the invention has the advantages of low dielectric loss, high breakdown strength and low sintering temperature.